Isobaric vapour-liquid equilibrium at 40.0 and 101.3 kPa is reported for the binary systems 2-butanol with chlorocyclohexane, chlorobenzene, bromocyclohexane and bromobenzene. Some of the studied systems show minimum temperature azeotropes. The VLE results were thermodynamically consistent and correlated with the Margules, van Laar, Wilson, NRTL and UNIQUAC equations. Predictions with the UNIFAC and ASOG methods were also made.